The Mclntosh MC500 is a 500 watt per channel stereo power amplifier created in a stun-
ning new contemporary industrial design. Two 5-1/2 inch True Power Output meters are mounted
behind the 1/2 inch thick glass front panel. The high efficiency of the MC500 circuits together
with oversize heatsinks utilizing convection cooling eliminates the need for internal cooling
fans. Typical Mclntosh attention to detail includes the use of 1% metal film resistors and
polypropylene capacitors throughout. Internal heatsink module connectors use gold plated
contacts to ensure reliable operation.
Gold plated Balanced as well as Unbalanced Input connectors ensure reliable signal transfer.
A rear panel MODE switch is also provided to change the MC500 output configuration from
a 500 watt per channel STEREO amplifier to a 1000 watt bridged mono amplifier The patented
Mclntosh Power Guard circuit in each channel eliminates the possibility of overdriving the
MC500 amplifier into clipping distortion. Mclntosh Sentry Monitor Output protection circuits
are also included. You ensure maximum amplifier reliability and long operating life with ab-
solutely no sonic limitations or compromises.
Each channel is coupled to the loudspeaker loads by a Mclntosh Output Autoformer with
matched impedances of 2, 4 and 8 ohms. Each channel of the MC500 can produce a peak
current output of more than 112 amperes, the highest ever for a Mclntosh stereo power
amplifier. The MC500 can successfully drive any type of loudspeaker. With a distortion limit
of less than 0.005%, the MC500 power amplifier is absolutely transparent, ensuring total
sonic accuracy.
Mclntosh knows how to do it right.
INTRODUCTION
The Mclntosh MC500 Power Amplifier is designed as a free standing unit. It includes large
padded mounting feet which allow the amplifier to be placed on a table top, shelf or other
similar mounting surface.
Always provide adequate ventilation for the amplifier. The trouble free life of any electronic
instrument is greatly extended by providing sufficient ventilation for cool operation. Allow at
least 1-1/2 inches (3.8cm) above the heat sink area so airflow is not obstructed. The recom-
mended minimum mounting depth, including clearance for connectors is, 20-1/8 inches
(51.1cm). This dimension includes the handles which extend from the front panel.
INSTALLATION
For detailed information on the operating features and circuit designs of the MC500,
please refer to the section in this manual titled TECHNICAL DESCRIPTION,
POWER LEVEL METERS
The two power output meters indicate the power output in watts of each channel of the
MC500 to an accuracy of 95%.
METER: WATTS/HOLD
In the WATTS position, the meters will respond continuously to the power output produced
by each channel.
POWER: OFF-REMOTE/ON
The OFF-REMOTE switch position allows the MC500 to be turned on remotely from a
FRONT PANEL
FEATURES
5
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